Ruby 矩阵类的flatten()函数 flatten()是一个数组类方法，用于返回扁平化的数组，即一维数组。 语法。Array.flatten() 参数。数组 返回一维数组 例子 #1 : # Ruby code for flatten() method # declaring array a = [[18, 22], [ 33, nil, 5, 6]] # declaring array b = [[[1, 4, 1, 1, 88, 9]]] # flatten puts "flatten : #{a.flatten()}\n\n" # flatten puts "flatten : #{b.flatten()}\n\n"RubyCopy 输出: flatten : [18, 22, 33, nil, 5, 6] flatten : [1, 4, 1, 1, 88, 9] RubyCopy 例子 #2 : # Ruby code for flatten() method # declaring array a = [["abc", "nil", ], ["dog"]] # declaring array b = [[[["cow", nil, "dog"]]]] # flatten puts "flatten : #{a.flatten()}\n\n" # flatten puts "flatten : #{b.flatten()}\n\n"RubyCopy 输出: flatten : ["abc", "nil", "dog"] flatten : ["cow", nil, "dog"] RubyCopy
极客教程